Well now that you know it's the big tank it's not for sure your gauge is bad....run her dry and see what happens.

When you fill it....it stays above full longer than normal....they didn't adjust the gauge for the larger tank.

I was always worried before that I would run out of gas. When it's full the needle camps above full for a really long time, and then after about 5/8 of the tank is gone, the needle bounces all over the place...it will often jump from the 3/8 mark, to almost full, to the empty line depending on which direction I'm turning.

I've owned a couple older cars (70 Nova, 74 Camaro) that had the older style fuel sending/feeler units that get pretty inaccurate when the fuel sloshes around, but on my YJ I though it only had the 15 gallon tank so it added to the confusion.

The more you know!...

Is there a way to adjust the fuel gauge? Or is it something that must be replaced?

I was always worried before that I would run out of gas. When it's full the needle camps above full for a really long time, and then after about 5/8 of the tank is gone, the needle bounces all over the place...it will often jump from the 3/8 mark, to almost full, to the empty line depending on which direction I'm turning.

I've owned a couple older cars (70 Nova, 74 Camaro) that had the older style fuel sending/feeler units that get pretty inaccurate when the fuel sloshes around, but on my YJ I though it only had the 15 gallon tank so it added to the confusion.

The more you know!...

Is there a way to adjust the fuel gauge? Or is it something that must be replaced?

Cheers

I haven't found away to adjust the gauge. By what your saying with the gauge bouncing all over it probably is the gauge....I haven't heard issues like that coming from sending unit. However...if you have a bad wire between the gauge and SU, it can cause that for sure. The ohm reading will change if the wire is bad which will make it jump around. Checking the wire should be on the list of things to do.

I haven't found away to adjust the gauge. By what your saying with the gauge bouncing all over it probably is the gauge....I haven't heard issues like that coming from sending unit. However...if you have a bad wire between the gauge and SU, it can cause that for sure. The ohm reading will change if the wire is bad which will make it jump around. Checking the wire should be on the list of things to do.

Gotcha.
Added to the list. I'll dig into that this coming week. I've got a pretty good sized "general maintenance/troubleshooting" list to try and tackle this week before all my goodies start showing up in the mail and the real work begins.

So my fiancee's father just picked up a 1995 4.0L with 30K original miles on it. Every since I was 17 I've always wanted this JEEP. I love the way the rectangular headlights look and the interior is so simply/basic. Currently I am going through the FAQ thread. I hope to be a long time member here..

So my fiancee's father just picked up a 1995 4.0L with 30K original miles on it. Every since I was 17 I've always wanted this JEEP. I love the way the rectangular headlights look and the interior is so simply/basic. Currently I am going through the FAQ thread. I hope to be a long time member here..

Welcome!
Sounds like a nice Jeep. Share some pics with us
Lot's to learn around here. And the YJ section is the best!